oh please DON'T chdir ! it's not thread safe
On Tuesday, February 10, 2015 at 11:19:18 AM UTC+1, Yebach wrote:
>
> Hello
> I encounter an interesting problem or bug
>
> I have a app that runs some *.exe program that returns a file (*.out) to
> be processed every couple of second.
> If I want to stop this exe from working I delete *.lls file.
> So if a user hits play button I create lls file put it in a directory,
> sets status in db to 11 and then after some calculation is done user clicks
> on stop button and lls file is deleted, status in db is set back to 10, and
> some more actions are done with out file (doesn't really matter)
>
> NOW HERE IS THE CATCH
>
> If I run web2py from eclipse it works fine
>
> if I run web2py as standalone so doble click on web2py.py file in my
> windows explorer the lls file is not deleted, BUT there is a catch. If I
> refresh the page, click the stop button in my webapp lls file is deleted
>
> ANY suggestions?
>
> BTW there are no errors
>
> here is my code
>
>
> id = (request.vars.id)
> try:
> path = os.path.join(request.folder, 'engine')
> llsPath = os.path.join(request.folder, 'engine', 'e1',
> request.vars.id + '.lls')
>
> data = db(getDbScript(db(getDbScript(request.vars.id)).select(
> db.scripts.id, db.scripts.sc_lls, db.scripts.sc_engine_output,
> db.scripts.sc_status, db.scripts.sc_menu_data).first())).select(
> db.scripts.id, db.scripts.sc_lls, db.scripts.sc_engine_output,
> db.scripts.sc_status, db.scripts.sc_menu_data).first()
> script = db(getDbScript(request.vars.id)).select(db.scripts.id,
> db.scripts.sc_lls, db.scripts.sc_engine_output, db.scripts.sc_status,
> db.scripts.sc_menu_data,db.scripts.sc_organization,
> db.scripts.sc_cal_start).first()
> org = script["sc_organization"]
> shifts = db(db.shifts.sh_organisation ==
> org).select(db.shifts.sh_code,
> db.shifts.sh_start1,db.shifts.sh_start2,db.shifts.sh_end1,db.shifts.sh_end2,db.shifts.sh_color,db.shifts.sh_length1,db.shifts.sh_length2).as_list()
> outPath = os.path.join(request.folder, 'engine', 'e1',
> request.vars.id + '.out')
>
> if not script:
> return dict(status = -1)
>
> ###Status = 11 - Script is being calculated
> if script.sc_status == 11:
>
>
> # Change status - status = 10 --> user lahko da skripo računat
> - nima napak oz pomanjklivih podatkov
> #, sc_engine_output = readOutFile(request.vars.id))s
> # Add when user stopped calculation (ce bojo problemi se bo
> zraven posiljalo tudi id od script activitya)
> #Odstranim lls datoteko --> engine preneha delovat
> if os.path.isfile(llsPath):
> os.remove(llsPath)
>
> activity = db(db.script_activity.sa_id_script ==
> request.vars.id).select(db.script_activity.id,
> db.script_activity.sa_stop, orderby = ~db.script_activity.id, limitby =
> (0, 1)).first()
> activity.update_record(sa_stop = 'now')
> script.update_record(sc_status = 10)
>
>
> ##če obstaja out datotkea
> if os.path.isfile(outPath):
> #preberemo fajl
> out = readOutFile(request.vars.id).split('\n')
> #Vnesemo podatke v tabelo script
> script.update_record(sc_engine_output = readOutFile(
> request.vars.id))
> #odstranim out. datoteko
> os.remove(outPath)
> workersDb = db(db.workers.w_organisation == org).select(
> db.workers.id, db.workers.w_nick_name).as_list()
> #sparsamo out datoteko da jo lahko damo v tabelo result
> dateStart = script["sc_cal_start"]
> resultData = parseOut(out, dateStart, shifts, workersDb,
> org)
> #Pišemo rezultate v tabelo results
> resultsDbInsert(resultData["resultsDbData"], org, id)
>
>
> return dict(status = 1)
>
>
> else:
>
> ##prevedemo skripto v id.lls, prav tako zapišemo še v sc_lls
> #
> db.script_activity.insert(sa_id_script = request.vars.id,
> sa_start = 'now');
>
> ##validiramo json če ima kakršne koli napake idt.
> valJson = validateJson(script.sc_menu_data)
> if 1!=1 :#not valJson:
> #validacija ni uspela vrnemo error 300
> return dict(status = 300)
> #$#nov json - z vsemi errorji zapiđšemo v sc_menu_data
> script.update_record(sc_menu_data = valJson["formJson"])
> #če obstajjo errorji pol konc
> if 1!=1:#valJson["errors"]:
> #skripta gre v status 91, kar pomen da je user ne more dat
> računat
> script.update_record(sc_status = 91)
> #print valJson["errors"]
> return dict(status = 200)
>
> else:
> script.update_record(sc_status = 11)
> if os.path.isfile(outPath):
> os.remove(outPath)
> TranslateData(script.sc_menu_data, path, id, org)
> # Run woshi engine
> path_1 = os.path.join(path, 'e1')
> os.chdir(path_1)
> #p = subprocess.Popen(['w_parameter.bat', id], shell=True,
> stdout = subprocess.PIPE)
> p = subprocess.Popen(['woshi_engine.exe', id], shell=True,
> stdout = subprocess.PIPE)
> return dict(status = 1)
>
> except Exception as e:
> script.update_record(sc_status = 10)
> exc_type, exc_obj, exc_tb = sys.exc_info()
> fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
>
> print(exc_type, fname, exc_tb.tb_lineno)
> print e.__doc__
> print e.message
>
> return dict(status = 666)
>
>
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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